ASUS A7M266D Motherboard Memory Upgrade

Give your ASUS A7M266D a performance boost by increasing its memory. Besides better performance, you will be able to have more applications running at the same time.

Avoid fatal exception errors, stop messages and random reboots by investing in quality memory for your ASUS A7M266D. The computer memory upgrade choices listed here have been tested for quality and compatibility with your ASUS A7M266D motherboard. In addition, you get a limited lifetime warranty and free technical support with your computer memory upgrade.

ASUS A7M266D Motherboard Specs:

• 184-pin DIMM Banking: 4 (4 banks of 1)
• Chipset: AMD 760-MPX
• DDR SDRAM Frequencies: PC1600 and PC2100
• Error Detection Support: ECC and non-ECC
• Graphics Support: AGP 4X
• Max Registered DDR SDRAM: 3584MB
• Max Unbuffered DDR SDRAM: 2048MB
• Module Types Supported: Unbuffered and Registered
• Supported DRAM Types: DDR SDRAM only
• USB Support: 1.x Compliant

These 184-pin DIMM modules are compatible with your A7M266D:

1GB DDR PC2100, CL=2.5, UNBUFFERED, NON-ECC, DDR266, 2.5V, 128Meg x 64

1GB DDR PC2700, CL=2.5, UNBUFFERED, NON-ECC, DDR333, 2.5V, 128Meg x 64

1GB DDR PC3200, CL=3, UNBUFFERED, NON-ECC, DDR400, 2.6V, 128Meg x 64

1GB DDR PC2100, CL=2.5, REGISTERED, ECC, DDR266, 2.5V, 128Meg x 72

512MB DDR PC3200, CL=3, UNBUFFERED, NON-ECC, DDR400, 2.6V, 64Meg x 64

512MB DDR PC2700, CL=2.5, UNBUFFERED, NON-ECC, DDR333, 2.5V, 64Meg x 64

512MB DDR PC2100, CL=2.5, UNBUFFERED, NON-ECC, DDR266, 2.5V, 64Meg x 64

512MB DDR PC3200, CL=3, UNBUFFERED, ECC, DDR400, 2.6V, 64Meg x 72

512MB DDR PC2100, CL=2.5, UNBUFFERED, ECC, DDR266, 2.5V, 64Meg x 72

512MB DDR PC2700, CL=2.5, UNBUFFERED, ECC, DDR333, 2.5V, 64Meg x 72

512MB DDR PC2100, CL=2.5, REGISTERED, ECC, DDR266, 2.5V, 64Meg x 72

256MB DDR PC3200, CL=3, UNBUFFERED, NON-ECC, DDR400, 2.6V, 32Meg x 64

256MB DDR PC2100, CL=2.5, UNBUFFERED, NON-ECC, DDR266, 2.5V, 32Meg x 64

256MB DDR PC2700, CL=2.5, UNBUFFERED, NON-ECC, DDR333, 2.5V, 32Meg x 64

256MB DDR PC2700, CL=2.5, UNBUFFERED, ECC, DDR333, 2.5V, 32Meg x 72

256MB DDR PC3200, CL=3, UNBUFFERED, ECC, DDR400, 2.6V, 32Meg x 72

256MB DDR PC2100, CL=2.5, REGISTERED, ECC, DDR266, 2.5V, 32Meg x 72

128MB DDR PC2100, CL=2.5, UNBUFFERED, NON-ECC, DDR266, 2.5V, 16Meg x 64

128MB DDR PC3200, CL=3, UNBUFFERED, NON-ECC, DDR400, 2.6V, 16Meg x 64

128MB DDR PC2700, CL=2.5, UNBUFFERED, NON-ECC, DDR333, 2.5V, 16Meg x 64

ASUS A7M266D Memory FAQ

What is DDR?

DDR stands for Double Data Rate and is an enhanced type of memory which allows data to be read on both the rising and the falling edge of the clock. It basically delivers more data in less time than the previous memory technologies. The ASUS A7M266D uses DDR memory only.

What does PC1600 and PC2100 mean?

The number is the throughput speed of the memory in megabytes per second. The speed you need depends on what the installed CPU supports. You can also run faster rated memory for future upgrading or overclocking.

Do I need ECC or non-ECC memory?

ECC memory contains error correction circuitry to correct and fix memory errors. If you are running the computer as a web server, database server or anything mission critical, then ECC memory is the way to go. On the other hand, memory errors are so rare that for typical home use, non-ECC memory is recommended. Non-ECC memory is also cheaper and faster.

Should I go with Unbuffered or Registered memory?

Go with whatever type of memory is currently in your ASUS A7M266D motherboard. Registered memory will have one or more horizontal black chips that are smaller than the memory chips. If no memory is installed, you can go with either type but mixing types is not allowed. Registered memory can give you extra capacity at the expense of extra latency.

What does the CL number mean?

Column Address Strobe (CAS) Latency, or CL for short, specifies how many clock cycles the ASUS A7M266D motherboard must wait before the memory module is ready to deliver the requested memory. The lower the CL number, the faster the access time.

However, the performance difference between CL=2 and CL=3 is so small that you will not notice any degradation in speed. Unless you are overclocking your ASUS A7M266D, you do not need to worry about the CL rating. If you are overclocking, then going with a lower CL may help stabilize your ASUS A7M266D motherboard.